Through-wall purge ventilation duct with induced draft fan

Abstract

The invention discloses a through-wall purification ventilation pipe with an induced draft fan. The through-wall purification ventilation pipe comprises a ventilation pipe, a filter device and a pipefan; the ventilation pipe comprises a first section of ventilation pipe and a second section of ventilation pipe; the pipe fan is arranged on the first section of ventilation pipe; the filter device comprises a filter screen and a filter screen mounting shell; the filter screen mounting shell comprises two half mounting shells with the same structures; the first section of ventilation pipe is provided with a first mounting cover; and the second section of ventilation pipe is provided with a second mounting cover. The through-wall purification ventilation pipe is provided with the induced draftfan for achieving a suction function; the novel filter screen is arranged in the ventilation pipe to achieve a filter function; through extension of a gas filter path, the designed filter screen achieves the purpose of prolonging the contacted time of gas with the filter screen, so that the purifying efficiency of the filter screen is high, and the filter screen can be singly used by deviating from a purifier when the air purifying effect is improved; and in addition, an air volume adjusting device is designed to achieve less mounting space, simple operation, reliable structure and high automation degree.

Description

technical field [0001] The invention belongs to the field of gas purification and ventilation equipment accessories, in particular to a wall-penetrating purification ventilation pipe with an induced draft fan. Background technique [0002] Air purifiers refer to products that can absorb, decompose or transform various pollutants in the air and effectively improve the cleanliness of indoor air. It is used in home, medical and industrial fields. In the field of home, single-unit household air purifiers are the mainstream products in the market. The main function is to remove particulate matter in the air, including allergens, indoor PM2.5, etc., and it can also solve the problem of volatile organic compounds in indoors, underground spaces, and cars caused by decoration or other reasons. [0003] The air purifier filters the fresh outdoor air into the room through the ventilation duct, and at the same time discharges the dirty air from the room to the outside. At present, mos...

AI Technical Summary

Problems solved by technology

However, the single valve plate used in this traditional structure must be made relatively thick in order to withstand the wind pressure. In addition, the rotation of the valve plate needs to occupy a large space. It cannot play its role in places where the installation space is narrow and the equipment is dense.

[0004] The patent application number is the Chinese patent of CN200510130459.4, and the patent name is: a simple natural fresh air indoor device, which discloses a ventilation pipe, a louver and an air filter, the louver is installed on the outer end of the ventilation pipe, and the air filter Installed on the cross-section of the ventilation pipe, although it solves the problem of indoor ventilation, the filtering effect is poor, and it does not have the function of adjusting the air volume, nor does it have the function of suction, so it cannot be used as an air purifier alone

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